Motor control and drive



29, 1931. F. E. PFEIFFER ETAL loToR coNTnor.. AND DRIVE 'med Ja'n. 11, 1930 s snew'snee 1 Tlv im lll' lll l. L l l l l l l l l l l l I I l I I I I l I I l l I l l l Il F f mm dan.- Fn mP .m N .0 P i i mn. .wm fw. v -1am J E f ahw at NM MN o \|11-| l l ..5 ai. Il 1J n /fi Ptw Ill lllll Sept. 29, 1931. F. E. PFEIFFER ETAL 1,825,418

MOTOR CONTROL AND DRIVE Filed Jan. 11 1930 3 Sheets-Sheet 2 (vf-I 20 yF'. E. PFEIFFER ETAI- IOTOR CONTROL AND DRIVE Sept 29, 1931.

3 Sheets-Sheet 5 Filed Jan. 1`1 A193,0

Jwomtoc FRA NK E. PFf/FFER. WILLIAM C.PF '1FFER,

' 25 driven apparatus with Patented sept 29, 1931y um@ i STATES PATENT y OFFICE l:man1: n rramna'm wnmrur c. m' DAYTON. omo, nssrenons 'ro man may naersraa conm, or nanou, omo, a coaronarzou or omo :moron comer. ND ma .mamadas nei mm1-y 11.111130. amaro. maar.'

. This invention relates'to a motor operated drivev and a control therefor. i

It is a special object of this invention to provide a motor control which,' when once initiated, will run through a complete cycle of operations and will then come to rest, 1t being impossible during the cycle` to stop andstart the motor and thecyclebeing positively terminated by a part ofythe motor driven apparatus. s .Y v This invention isA particularl .adaptable tothe issuing of predetermine 4lengths of Sheets' from -autographic registers and the f like. j 'i l 5 vReferring to the drawings; v

` Figure 1 is va. side elevation of. the motor, the apparatus driven by the motor with the cover' removed and thesoutline of a typical autographic register;

30 Figure 2 1s a section on theline of Fi re 1 ;v igure 3 is4 a section on the llne 3 3 of Fi l re. 2; v

i'gure 4 'is a side elevation of the motor the switch openand the parts at rest;

F1 re 5 is a similar viewv with the switch closedIl and the parts starting` to operate but with the handle in depresse t1on; 30 Figure 6'is asimilar view lwith the parts@ in operation but the handle having returned to its' initial position; l

Figure 7 is a section on the line 7-7 of e2; 35 ig'ure 8 is a section on the line 8-8 of Figure -2 showing the position of the' latch A 'ior to the depression of the operating han- Figure 9 ,is a similar view showing the 4.2 parts as the handle is passingby the latch;

Figure 10 is asimilar view showing the 'parts with the handle'belowv thel latch;

. Figure 11 is a section on the line 11--11 of Figure .1 showin in plan 'view the op- 'u eratinghandle and atching mechanism.

pawl'27 with one of the tee Figure `12 shows. a. diagram of the electricalconnections.

Referring tothe drawings in `detail,` it will be understood that this inventionv is adaptable to any type of apparatus and it ismerely shown in connection with an au. 'l

`tograph1c register in order to indicate s typicalapplication where this invention will 'In ythe drawings, `l1 is the base of an autographic register havingsidel walls 2 and 3.l The registerV is provlded with .the usual pa er sheet ejecting rolls 4and .5 which are drlven ,'throu h the gears 6, 7, 8, 9 and 10.

Gears 8 an shaft 11.` The gear 10 is mounted upon the 'driven shaft 12 which has mounted thereon a locking detent 13 for engagement with the -pawl 14 carried by the gear 10; This paw] 1s held in locking engagement by the spring 15 carried by the gear 101 The motor 16 is carried upon the bracket 17 which in turn is mounted on-the ears 1 8'upon the bottom 1 of the register. This motor drives the worm shaft 19 having the worm 20 for engagement with aworm gear 21. This worm gear 21- has pinned thereto by the pins 22 a detent 23 havin four teeth 24.' Both the gear 21 and the etent23 which is pinned to it are 9 are mounted upon a common 1 mounted upon the shaft 12 and turn with it I that is pivoted at 27 on thisdisk. spring 28 normally tends to enga the locking tent 23 to' bring about theengagement be tweenthe power driven gear 21 on the one hand' and the disk 25. with the 4shaft 12 on v the other hand. The disk is 24 of the de.;

only when connected to the cam disk 25 .l through the' agency of the 'lockinggawl 26 Y imid .t0 f the. shaft 12 by the pin 29. The isk has a cutaw-a jslot into which the pivoted nose 31 of t e locking arm 32 is adalpted/to dro to thus depress one end of th ocking. paw 26 toL maintain it out of e gement with `one of the teeth 24 of thedetent 23. A sta nose 31a also enters the slot and ges the shoulder 315. The spring 31o s to pull the linger 31 to a point to rest le periphery of the disc 25 before the starts to move. (See Fig. The

ng nose 31is elevated so that it will ride the outside surface of the cam disk a 33 thus permitting the spring 28 to the locking finger 26 into engagement the teeth 24 of the detent 23 and the t 12 with the driven gear 21. This will .t;in the actuation of the rolls 4 and 5 ne paper sheets. order to start the motor, the switch rbers 34 and 35 must be closed. They aupported in the insulation block 36. To s them, the shoulder 37 of the locking 32 engages the under side of the Contact lber bringing that contact member 1n gement with the contact member 34 as i'gures 5 and 6 and hold such members hat position until the end of the cycle rations. igure 12 shows diagrammatically the tric wiring for operating the motor and cut-oil mechanism. The conductor 35a nds through a switcli 355 to the motor from the motor through -a connection to the contact member 35 in the casing 4The contact member 34, which is ted to contact with the contact member has extending therefrom a conductor 34a, ch is connected to the line 345. The lines and 35a .are connected to some suitable roe of electrical current. Whenever the tch 35h is closed the motor will operate long pas the contacts 341and 35 are 1 n |'agement with each other, but when this .tact between 34 and 35 is broken the tor will stop and remain stationary until se contacts are brought together again.- lhe locking' arm 32 is pvot'ed at 38. It is rmally held in the position shown in Fg' :s 4 and 6 by the spring 39 which is athed to the casing 40 at one end and to locking arm at 41 at the other end. ['he disk 25 is provided with a lshouldered ejection 42'that is engaged by la. rocking tent 43 carred'on the casing 40 that is ringpressed b the spring 44 into engage; ant with the s oulder 42. Thsprevents ckward movement of the disk 25 and its lociated mechanism.

The Operating to initiale the arm 32 without disturbing it when the movef cle of operations comrises a handley 45 th a thumb piece 46. ed at 47 on the casing 40. It is adapted be depressed until it reaches the bottom the slot 48 the casing 40. The handle socarries an angular extension known as kickout unlocking arm designated 49. his arm is provided with a cam nose 50 lat engages with a pin 51 carried on the itside of the disk 25. The function of this his handle is pivlv of the locking arm 32 thereby carrying the 75 arm downwardly when the handle 45 moves downwardly until the locking arm is in locked posltion as in Figures 5 and 6 by reason of the lockin finger. 31 riding on the surface l33 of the isk 25, whereupon the so handle 45 can return upwardly under the influence of its s ring 55a and will be rmitted to do so y havi the cam sur ace 55 slide over the end of t e arm 32.

direction engages the kickout arm 49 'and compels a complete downward stroke of the arm 45 to thus insure the parts moving into locked contact making position for a full c cle of operations so ment of the handle 45 will not be possible.

Method of operation 4 The nose 'into 'the slot 30 disconnecting the finger 26 from thev tooth 24 and likewise disconnecting the contact members 34 and 35 which are spring members and spring a art when released. The movement of the ndle 45 downwardly serves to actuate the' locking arm 32 in on'e direction but upon a return of the handle it does not actuat'e the locking arm because the latch 52 slips by the locking Yment is in an upward direction. i

Thus, there is provided a source of motive power, a driven shaft, a clutch between the driven shaft and motive power, aswitch closed when the clutch is closed, means to m p hold the clutch and switch closed for a cycle of operations, an operating handle operable in one direction only, and means to compel a full stroke of the operating handle before release.

connecting the gear 21 shoulder a7 of che the nose 31 1s permitted to'drop down ,l v

The pin 51 as it travels in a clockwise g5 that a partial movese fthereby carrying with it the locking arm 32. U6

the disk 25 and the pin 51 106 It will be understood that we desire to comprehend within our invention such modiicationsas may be necessary to adapt it to vag'ing conditions and uses.

5 aving thus fully described our invention, what we claim as new and desire by Letters Patent to secure, is:

1. In combination, a motor, meansl to be driven by said motor, means to connect the driveny means to the motor, a locking arm adapted to maintain said connecting-means inoperative when the motor is at rest and to cause it to operate when the motor is operated, means on said locking arm for closing a switch tov operate said motor, a switch therefor, an' operating handle for said locking arm, and means on said handle to cause tl'e handle to move the ylocking arm into. s itch closing vpositionv and adapted-to slip by the locking arm forthe handle tof return to its initial position without disturbs ing the locking arm. 2. In combination, a motor,l means to be 'driven by 'said motor, means to connect the driven means to 'the,motor,' a locking arm adapted to maintain said connecting means inoperative when the inotorl is at 'rest and to cause it to operate when the motor is operated, means on said lookin arm for closing a switch to operate sai motor, a switchtherefor, an operating handle for said locking arm, and means on said handle to causev the handle to move thelocking arm into switch closing position and adapted' to slip by the locking arm for the handle to returny to its initial position without dis turbing the locking arnnandf means associated with said drivenmeans for moving said handle a complete stroke to insure Athe closing of'said switch and the connection of the motor with the vdriven means. 3. In, combination,w a motor, a driven shaft, a loosely mounted gearand detent thereon, a cam fdisk having a slot in the` eri herypixed'to said shaft, a latch mem r a ted to engagesaid detent mounted on sai ,disk,.yielding means for `moving said latch into engagement. with theA detent, a @rocking arm extendingl into said "slot to maintain said latch'in inoperative position, means to move said locking arm from said slot to.l let it rest on lthe periphery of said disk, a switch for operating said motor means von the loki arm for'v closing'v said switch torotate saidjdisk while'the locking arm is out of the slot,apivoted'inger on v the llocking arm, ,a springv to retract it. to' mount it on said disc Vprior to the movement thereof. i 4. i In combinatioma motor, a driven shaft, a loosely mounted gear and detent thereon,v a-fcam diskhaving a slotin theperiphery fixed .tosaid shaft, a, latch member adapted engage said detent, mounted on said disk, '65 yieldlng means for. moving said latch into.

engagement with the detent, av rocking arm extending @into said slot tomaintain said latch ininoperative position, means to move said locking arm from said slot to let it rest on the periphery of said disk, a'switch for operatingsaid motor, means on the locking armfor closing said switch to rotate said disk 'While'the lookin arm isv out ofthe slot, an operatin "han le having a latch member thereon or operating said ,locking arm, a pivoted finger on the locking arm, a spring to retract it to mount it on `said disk prior to the movement thereof.

5. In' combination, a motor, adriven shaft,

a loosel mounted gear and detent thereon,-

a cam isk having aslot Ain the'periphery fixed to said shaft, a latch member adapted to engage said detent mounted on said disk,

yielding means formoving said latch intoengagement with the detent, al rocking arm extending into said slot-to' maintain. said latch in inoperative position, means to move said locking arm from said slot to let it rest on theperlphery lof said disk, a' switch for operatingsaid motor, means on the lockin arm for closing said switch'to rotate sai disk while the lockin |farm .is out'of the slot,an operatin han leyfor operatin said locking arm, an means 'on said hand e for' 'moving' it through a complete stroke and holdin it until said-locking arm shall ride upon. t eperiphery of saiddisk.

6. In comblnatioi, a motor, a drlven shaft, a loosely mounted gear and detent thereon, a cam disk having a slot in the periphery fixed to sai shaft, a latchy member adaptedto engage said detent mounted on said disk yielding means for moving' said latch into engagement' withv the -detent,'ja`

rocking arm extending into said slot to maintain said latch in inoperative position, means to move said locking arm from said slot to let it reston the periphery of said disk, a switch for operating said motor, l

means on the locking a'rm for closing said switch to rotate said disk while the locking arm is out'of the slot, an operating handle for operating said locking arm, and means 'on said handlefor moving it through a com.- plete stroke-and holding it until said locking arm shall ride upon `the periphery of said disk, and yielding means to maintain said handle to its initial position.` I

7. In combination, a motor, .a driven shaft; a loosely mounted gear and. detent thereon, a cam disk havinv a slot inv the periphery .fixed to said sha a latch-member adapted to engagesaid detentmounted on said disk, yielding means for moving said latch into engagement with the detent, a4 rocking arm extending into said slot Ito maintain said latch in'vino rative position, means to move said locking arm from said slot to let it rest onv the periphery of said disk, la switch 4for operating id motor, means on the locking arm for )sing said switch vto rotate said disk while e locking arm is out of the slot, an operatg handle for operating said locking arm,

sans on said handle for movin it through complete stroke and holding 1t until said cking arm shall ridel upon the periphery said disk, and yielding means to mainin said handle to its initial position, means 1 said handle for moving said locking 'm in one direction Aof movement of the mdle but not disturbing it when moved the other direction.

8. In combination, a motor, a driven shaft,

loosely mounted gear and detent there- 1, a cam -disk having va slot in the peri hly fixed to said shaft, a latch me r lapted to engagel said detent mounted on Lid disk, yielding means for moving said .tch into engagement with the detent, a )cking arm extendin into said slot to iaintain said latch in inoperative position, leans to move said locking arm from said .ot to let it rest on the periphery of said isk, a switch for operating said motor, leans on the.lockin arm for closing said witch to rotate sai disk while the lockig arm is out of the slot, an operating hanle for operating said locking arm, means n said handle for moving it through a comlete stroke and holding it until said locka arm shall ride upon the periphery of aid disk, and yielding'means to maintain aid handle to its initial position, means on aid handle .for moving said locking arm u one direction of movement of the handle lut not disturbing it when moved inV the ther direction, ashoulder on said disk and yieldingly mounted pawl engaging therevith to prevent backward movement of the lisk against saidpawl.

9. In combination, a motor 'having an ,lectric circuit, a shaft, a worm and worm haft driven thereb a driven shaft, a gear md detent moun thereon loosely, a disk raving a cutaway portion therein fixed to aid shaft, aspr' pressed latch to engage iaid detent pivo n said disk ha one and adjacent the cutaway portion o said lisk, a locking arm, a pivoted finger there- )n yieldingly depressing said latch when ;aid iin er 1s in the cutaway portion of said dis and when not in said portion adapted to ridefon the periphery of said disk, a switch in said circuit on the other side of said locking arm from said disk adapted to be closed by said locking arm when said finger is moved to ride on the periphery of said disk.

10. In combination, a motor having an electric circuit, a shaft, a worm and worm` shaft driven thereby, a driven shaft, a gear and detent mounted thereon looselya disk havi a cutaway portion therein -fixed to said s aft, a spring pressed latch to engage said detent pivoted on said disk having one end adjacent the cutaway portion of said disk, a locking arm, a pivoted linger thereon yieldingly -depressing said latch when said iin er 1s in the cutaway portion of said dis and when not in said portion adapted to ride on the periphery of said disk, a switch in said circuit on the other side of said locking arm from said disk adapted to be closed by said locking arm when said'finger is moved to ride on the eriphery of said disk, an actuatingrhandle having means thereon for moving said locking arm with its pivoted finger in one direction and adapted to return to its initial position without disturbing said locking arm, and yielding means for so returning it.

11. In combination, a motor having an electric circuit, a shaft, aworm and worm shaft driven thereby, a driven shaft, a gear and detent mounted thereon loosely, a disk having a cutawayportion therein fixed to said shaft, a spring pressed latch to engage said detent pivoted on said disk 'havlng one end adjacent the cutaway (portion of said disk, a lockin arm, a pivote finger thereon yieldingly epressing said latch when said finger` 1s inthe cutaway portion of said disk and when not in said portion adapted to ride on the periphery of said disk, a switch in said circuit on the\ other 'side of said locking arm from said disk adapted to be closed by said locking arm when said finger is moved to ride on the periphery of said disk, an actuating handle having means thereon for moving said locking-arm with its pivoted finger in one direction and adapted to return to its initial position without disturbing said locking arm, yieldin means for so returning it, a in on said dis and a4 kickout arm on said andle whereby the movement of the disk when initiated will compel a com lete movement of' said handle forthe comp etion of a cycle of operations before said handle can be returned to its initial position.

12. In combination, a motor having an electric circuit, a shaft, a worm and worm shaft driven thereby, a driven shaft, a ar and detent mounted 'thereon loosely, a

having a cutawa portion ixed to-saidshaft, a spring presse latch pivoted on said -disk -havin one end adjacent a cutaway rtion of sai disk, a locking arm, a pivotefiinger thereon yieldingly epressing said latch when said fingeras in the cutaway portion of said disk and when not in said portion adapted to ride on the periphery of said disk, a switch in said circuit on the other side of said lockingr arm from said disk adapted to be closed by said locking arm when said finger is moved to ride on the periphery of said disk, an actuating handle having means thereon for moving said locking arm with its pivoted finger in one direction and adaptedk to return toits initial position 4without disturbing said locking arm, and yielding means for so returning it, a pin on said disk, a kickout arm on said handle whereby the movement of the disk when initiated will compel a complete movement of said handle for the completion of a cycle of operations before said handle can be returned to its initial position, and means associated with said disk for preventing its turning backwardly. l

In testimony whereof, we aiix our signa- FRANK E. YPriannnm- WILLIAM o. PFEIFFER.

tures, 

